ISO 10927:2011 塑料 基质辅助激光解吸附/电离飞行时间质谱法测定聚合物种类的分子质量及分子质量分布

标准编号：ISO 10927:2011

中文名称：塑料 基质辅助激光解吸附/电离飞行时间质谱法测定聚合物种类的分子质量及分子质量分布

英文名称：Plastics — Determination of the molecular mass and molecular mass distribution of polymer species by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS)

发布日期：2011-04

标准范围

ISO 10927:2011规定了通过基质辅助激光解吸/电离飞行时间质谱（MALDI？TOF？MS）测定2 000 g.mol-1至20 000 g.mol-1聚合物的平均分子量和分子量分布的通用方法。平均分子量和分子量分布由使用合成聚合物和/或生物聚合物标准构建的校准曲线计算。因此，该方法被归类为相对方法。该方法不适用于聚烯烃或多分散性>1,2的聚合物。

ISO 10927:2011 specifies a general method for determining the average molecular mass and molecular mass distribution of polymers from 2 000 g.mol^-1 to 20 000 g.mol^-1 by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI？TOF？MS).The average molecular masses and molecular mass distributions are calculated from a calibration curve constructed using synthetic-polymer and/or biopolymer standards. This method is therefore classified as a relative method.The method is not applicable to polyolefins or to polymers with a polydispersity > 1,2.

标准预览图